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The Pollutant Standards Index (PSI) is a type of air quality index used in Singapore, which is a number used to indicate the level of pollutants in air.Initially PSI was based on five air pollutants, but since 1 April 2014 it has also included fine particulate matter (PM 2.5).
The 2015 Southeast Asian haze led to a Pollutant Standards Index of 353 in Tiong Bahru. Environmental issues in Singapore include air, water pollution, and deforestation. The government established the Singapore Green Plan in 1992 to help with environmental issues.
Singapore Standards are nationally recognized documents, established by consensus. They are functional or technical requirements in the form of specifications for materials, product system or process, codes of practice, methods of test, terminologies and guides.
Singapore constantly monitors and review its air quality standard by setting new air quality aims and targets. [19] Singapore uses Telemetric Air Quality Monitoring and Management System comprising 17 remote air monitoring stations linked electronically to a Central Control System.
The Transboundary Haze Pollution Act of 2014 (THPA) is a statute of the Parliament of Singapore that criminalizes conduct which causes or contributes to haze pollution in Singapore, and to provide for related matters such as deterrence. The law is designed specifically to allow legal in suing companies for environmental pollution.
Singapore and Malaysia continuously monitor and report air pollution levels, using the Pollutant Standards Index and Air Pollution Index, respectively. ASEAN introduced a Transboundary Haze agreement in 2002 following the severe international impact of the 1997 haze. [43]
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The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.